In this guide, you will learn how to get Custom Wallpapers On Hekate For The Switch (CFW).
First, resize the image you selected to 1280 by 720 and rename the image file to IT background. Then open the browser and search Free BMP online converter, open any free converter, and upload the selected file here. Once the file is converted, you need to download it. Once the download completes, put it on your desktop and delete the previous file.
Now open the switch folder, then go to Bootloaderres, and go into the res folder if you delete the old background image. If you have one, then replace it with this one.
After that, launch the switch, and you will find your new background on the switch.